7998361976 has 16 divisors (see below), whose sum is σ = 16360286040. Its totient is φ = 3635619040.

The previous prime is 7998361949. The next prime is 7998362027. The reversal of 7998361976 is 6791638997.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45445151 + ... + 45445326.

Almost surely, 2^7998361976 is an apocalyptic number.

It is an amenable number.

7998361976 is an abundant number, since it is smaller than the sum of its proper divisors (8361924064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7998361976 is a wasteful number, since it uses less digits than its factorization.

7998361976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90890494 (or 90890490 counting only the distinct ones).

The product of its digits is 30862944, while the sum is 65.

The square root of 7998361976 is about 89433.5617986894. The cubic root of 7998361976 is about 1999.8634886825.

The spelling of 7998361976 in words is "seven billion, nine hundred ninety-eight million, three hundred sixty-one thousand, nine hundred seventy-six".